Dust particles precipitation in AC/DC electrostatic precipitator

[摘要] Submicron and nanoparticles removal from flue or exhaust gases remain still a challenge for engineers. The most effective device used for gas cleaning in power plants or industry is electrostatic precipitator, but its collection efficiency steeply decreases for particles smaller than 1 micron. In this paper, fractional collection efficiency of two-stage electrostatic precipitator comprising of alternating electric field charger and DC supplied parallel-plate collection stage has been investigated. The total number collection efficiency for PM2.5 particles was higher than 95% and mass collection efficiency >99%. Fractional collection efficiency for particles between 300 nm and 1 μm was >95%.

[发布机构] Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, Gdañsk, Poland^1;RAFAKO S.A., ESP Division, Gómoslaska 3A, Pszczyna, Poland^2

[效力级别] 数学

[关键词] Alternating electric field charger;Collection efficiency;Dust particle;Gas cleaning;Parallel plates;PM2.5 particles;Submicron;Two-stage